Apparatus and method for winding wire around a workpiece

Abstract

An apparatus which includes a nozzle unit, a guide unit, a first winding assemblage and a second winding assemblage, operates such that the first winding assemblage forms a first winding (e.g., a deflection coil on a deflection yoke for use with a cathode ray tube) by moving the wire material from the nozzle unit in a three-dimensional direction after binding the wire material to the workpiece through the guide unit cooperating with the nozzle unit and the second winding assemblage forms a second winding (e.g., a leakage magnetic field shielding coil) different from the first winding by moving the nozzle unit in directions parallel and normal to the axis of the workpiece, respectively. Unlike the conventional apparatus, it is possible to wind a wire material in a variety of ways in different directions while keeping the position of the workpiece in a certain posture.

What is claimed is: 
     
       1. A winding apparatus for winding a wire material from a wire material supply source around a workpiece having an outer surface, which apparatus comprises: first winding means for forming a first winding on the workpiece by moving a nozzle unit, said nozzle unit having an end through which the wire material is paid out from the wire material supply source to the workpiece and a guide unit and operating such that the wire material from the nozzle unit is bound around a binding portion of the workpiece and moved in a three-dimensional direction by the guide unit cooperating with the movement of the nozzle unit, to thereby form a first winding on the workpiece; and   second winding means for forming on the workpiece a second winding different from the first winding by moving the nozzle unit in directions parallel and normal to the axis of the workpiece, said nozzle unit being maintained exterior to said outer surface of said workpiece during the formation of said second winding.   
     
     
       2. A winding apparatus according to claim 1, wherein said nozzle unit has a size suitable for allowing it to pass along every part of the workpiece. 
     
     
       3. A winding apparatus according to claim 2, wherein the end of said nozzle unit through which the wire material is introduced to said workpiece projects outward substantially in the shape of L. 
     
     
       4. A winding apparatus according to claim 1, wherein said first winding is a deflection coil of a deflection yoke for use with a cathode ray tube. 
     
     
       5. A winding method for winding a wire material paid out from a wire material supply source around a workpiece, said workpiece having an outer surface, which method is characterized in that a first winding is formed on the workpiece in such a manner that the wire material from the wire material supply source is fed to the workpiece through a nozzle unit and after being bound up around a binding portion of the workpiece, the wire material is moved in three-dimensional directions through a guide unit cooperating with the movement of the nozzle unit, and a second winding different from the first winding is formed on the workpiece by moving the nozzle unit in directions parallel and normal to the axis of the workpiece, said nozzle unit being maintained exterior to said outer surface of said workpiece during the formation of said second winding. 
     
     
       6. A winding method for winding a wire material paid out from a wire material supply source, which method is characterized in that a second winding is formed on a workpiece, said workpiece having an outer surface, by moving a nozzle unit, through which the wire material is fed to the workpiece, in directions parallel and normal to the axis of the workpiece, said nozzle unit being maintained exterior to said outer surface of said workpiece during the formation of said second winding, and a first winding different from the second winding is formed on the workpiece in such a manner that the wire material from the nozzle unit is moved in three-dimensional directions after is bound up around a binding portion of the workpiece, by the nozzle unit and a guide unit cooperating with the movement of the nozzle unit.